Thread:Endebros/@comment-31486859-20171214053215/@comment-31796688-20171214115343

Smogon bans things to uber because they affect the metagame in such big ways. For example; When aegislash was in OU, it was so dominating that people had to run mandibuzz on every team to beat it. The Evasion clause and OHKO clause are there to prevent unskilled players from winning via cheap tactics like OHKO moves and evasion. The reason why they have tiers and clauses is because if they didn't, the metagame would revolve around only the strongest legendaries and OHKO moves.